text: import abc
  
  from hummingbot.core.web_assistant.connections.data_types import RESTRequest
  
  
  class RESTPreProcessorBase(abc.ABC):
      """An interface class that enables functionality injection into the `RESTAssistant`.
  
      The logic provided by a class implementing this interface is applied to a request
      before it is sent out to the server.
      """
  
      @abc.abstractmethod
      async def pre_process(self, request: RESTRequest) -> RESTRequest:
          ...
  